EP 1269219 A1 20030102 - PRESSURE-SENSITIVE SWITCH, ITS METHOD OF CALIBRATION AND USE IN A HYDROPHONE ARRAY
Title (en)
PRESSURE-SENSITIVE SWITCH, ITS METHOD OF CALIBRATION AND USE IN A HYDROPHONE ARRAY
Title (de)
DRUCKEMPFINDLICHER SCHALTER, VERFAHREN ZU SEINER KALIBRATION UND VERWENDUNG IN EINEM HYDROPHON-ARRAY
Title (fr)
INTERRUPTEUR MANOMETRIQUE A MEMBRANE, PROCEDE D'ETALONNAGE CORRESPONDANT ET UTILISATION DANS UN RESEAU D'HYDROPHONES
Publication
Application
Priority
- US 0102845 W 20010129
- US 18572400 P 20000229
- US 57156900 A 20000515
Abstract (en)
[origin: US6318497B1] A pressure-sensitive switch comprises a base member having a mounting surface formed of electrically-insulating material; two electrodes mounted on the base member and each having an electrically-conductive contact surface, and a flexible diaphragm having its periphery secured in a fluid-tight manner to the mounting surface with its electrically-conductive central portion overlying the contact surfaces of the electrodes. The diaphragm, which is formed with plural corrugations, is exposed to the external pressure. When the switch is exposed to atmospheric pressure, the central portion of the diaphragm does not touch the contact surfaces of said electrodes, but when the switch is exposed to a super-atmospheric pressure, this central portion is forced into contact with both contact surfaces, thus electrically connecting the two electrodes. This pressure-sensitive switch is especially useful for use with hydrophones, as in seismic streamer cables.
IPC 1-7
IPC 8 full level
G01V 1/00 (2006.01); G01V 1/20 (2006.01); G01V 13/00 (2006.01); H01H 35/34 (2006.01)
CPC (source: EP US)
G01V 1/201 (2013.01 - EP US); G01V 13/00 (2013.01 - EP US); H01H 35/346 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
US 6318497 B1 20011120; CA 2401008 A1 20010907; CA 2401008 C 20060214; EP 1269219 A1 20030102; EP 1269219 A4 20120627; EP 1269219 B1 20170405; WO 0165278 A1 20010907
DOCDB simple family (application)
US 57156900 A 20000515; CA 2401008 A 20010129; EP 01906755 A 20010129; US 0102845 W 20010129